<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <script src="http://localhost:8080/socket.io/socket.io.js" charset="utf-8"></script>
    <script>
    let sock=io.connect('ws://localhost:8080/');

    //sock.emit
    //sock.on

    //sock.emit('aaa', 12, 5, 8);

    sock.on('t', function (ts){
      console.log(ts);
    });
    </script>
  </head>
  <body>

  </body>
</html>
